22 years after the experiment began, Harvard Forest ecologists continue to monitor downed wood in the hurricane pulldown experiment. Photo by John Hirsch.

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Following the massive hurricane of 1938, Al Cline, then-director of the Harvard Forest, surveys one of many local ponds used to store the enormous volume of trees that were salvage-harvested﻿. Photo courtesy of the Harvard Forest Archives.

Broken and snapped-off trees at the tornado impact area of the McKinstry Brook Wildlife Management Area in Southbridge, Massachusetts, 2011. This area has been left to regenerate naturally. MassWildlife photo by Bill Byrne. [[more photos of McKinstry Brook tornado damage available upon request]]